IIS SSL Certificate Export Option Missing – How to Fix

The certificate was not exportable, so I was unable to use Roberts suggestion. Ultimately, I had to rekey the certificate at the Go Daddy account management page, and install it on both servers again. Some of the options during the wizard for the install on IIS6 were grayed out for me, and my initial attempt on that server failed. I ended up installing the certificate on the new server (IIS7), and then exporting that certificate in a .pfx format, and then importing that version into the IIS6 installation. At which point everything started working.

Most likely you have only copied over the certificate chain, but not the private key for the SSL certificate. It should mention if it has a private key in the certificate information. When a certificate with a private key is first imported into Windows, there is an option to allow the private key to be marked exportable, if it is not (which is default), then Windows will not allow you to export the private key and move it elsewhere. There might be some tools for getting around this, but it's certainly not Microsoft approved. Look at the certificate information on the original computer and it should report that a private key is available, but I bet it's not exportable.